We have used bike and roll in other cities and have never been disapointed. This location has a self guided tour that takes you along a paved trail to Mt. Vernon. Tickets to Mt. Vernon are included then you leave your bikes there and take a boat back to Alexandria. This tour was delightful. The bikes are well maintained and have comfortable seats. The bike ride part was long enough to get good exercise and we could go at our own pace. The scenery was beautiful. The tickets to the boat ride and to Mt. Vernon were ready when we arrived and the staff was friendly.
A couple of suggestions if you take this tour:
1. Take a bottle of water! There is no place to purchase water along the way since this is a bike ride along the river and through woods.
2. Use a helmet! For some reason, the staff didn't offer us helmets, but they were available when we asked for them. There are parts of the trail that are rather steep declines and you can get to pretty high speeds.